Floor-surfacing machine.



J. HAMPTON.

FLOOR SURFACING MACHINE.

APPLICATION FILED JULY I4. I9I5. I 1 gflgfi v Patented Sept; 12, 1916 35 M 2 SHEETS-SHEET 1 1. HAMPTON.

FLOOR SURFACING MACHINE. APPLICATION FILED JULY 14. 1915.

11. 1 afl fio I larv11tvdSupt. 12, 1916.

35 2SHEETS-SHEET 2.

P 37 m i m; 36%

lh ltii JAMES HAMPTON, OF CHICAGO, ILLINOIS.

FLOOR-SURFACIN G MACHINE.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application filed July 14, 1915. Serial No. 39,885.

To all whom it may concern Be, it known that I, Janus HAMPTON, a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful improvements in Floor-Surfacing Machines, of which the following is a full, clear, and exact description.

The invention relates to floor-surfacing machines and more: particuh'irly to the type in which a horizontally revolving drum is employed for surfacing the floor. ()ne object of the invention is to provide an improved tloor-surfacing machine in which the mechanism for driving the surfacing drum or shaft thereof is disposed inwardly of the sides of the surfacing drum so that the machine may be worked close to the ualls around a floor.

Another object of the invention is to provide a 'l'hmr-surfacing machine in which the fan for carr \'ilig otl' the dust is disposed so that its shaft extends directly to the, drumshaft and so that simple earing can be em ployed for conjointly driving the suctionfan and the drum.

Other objects of the invention will appear from the description of the machine hereinafter given.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Figure l is a side elevation of a machine embodying the lI1\Gl1tl0ll. Fig. .2 is a plan. Fig. 3 is a detail transverse section of the surfacing-drum. showing one of the devices for securing the surfacing strip on the drum. Fig. 4 is a section taken on line 4l of Fig. 3. Fig. 5 is a longitudinal section of the machine, the motor being shown in elevation. Fig. (3 is a section taken on line (i-(3 of Fig. 5. Fig. '7 is a section taken on line 77 of Fig.

The improved machine comprises a truck with a frame 10 upon which an electric mo tor 11 is secured. The rear portion of the truck is supported by a pair of wheels 12 which are secured on a spindle ll journaled in brackets 15 which are secured to a plate 16. Springs 17 are interposed between frame 10 and plate 16 to yieldingly support the frame 10 and motor thereon. Posts 18 extend through one or more of the springs and through slots in the. support 10. The carrying-wlicels l2, brackets 15. plates 16, and sprhigs 17 serve to yieldingly support the rear of the machine. In operation, the weight of thefront portion of the machine is carried by a two-part surfacing drum 20. The shaft 21. of this drum is mounted in hearings 22 in a. bracket 23 which is rigid with the truck-frame 10. A plate 24 is fixed to bracket 23 and is pivoted to plate 16, as at 25, to permit the latter to move relatively to the frame 10 under the influence of springs 17. The drum comprises two sec-- tions or members 26, each of which is hollow to provide space for bearings 22 and is provided with a suitable peripheral portion 27 adapted to carry the sandpaper strip 28. Each drum section is rigidly secured to the shaft 21 by a pair of nuts 29. By providing a. drum formed of sections, which are separated to accommodate the pendant support ing bracket 23, which is rigid on the truckframe, the necessity of providing gearing or drivirig-mechanism at either side of the drum is avoided and as a. result, the machine an be operated close to the walls around the floor.

A pair of posts 30 secured to frame 10, are provided with sockets 31 and at their upper ends in which the side bars 39 of a rectangular handle-frame are adjustably held by screws 35. This handle-frame comprises said sides and a front cross-bar 33 and a rear cross-bari-ll rigidly secured together.

A fan-casing 3G is rigid with frame 10 and bracket 23 and may, as shown in the drawings. be integrally formed therewith,

if desired, although it will be understood;

that these parts may be separately formed and rigidly secured together. This fan-case ing is horizontally disposed, so that the fan shaft 37, to which the blades 3 a re. secured, will be vertically disposed and is extended through the bracket 23 in which it is journaled. The upper end of shaft- 37 is provided with a gear-wheel 38 meshing with a pinion 39 on the shaft 40 of the electric motor 11. The lower end of shaft 3'? is provided with a gar l1 n'ieshing with a gearwheel -12, which is fixed on the drum-shz'ift 2].. This construction exemplifies one in which a common shaft is employed for driving the surfacing drmu -and the fan. .A. hood 41 extends peripherally around the drum to receive the cuttings and guide them to the eve 43 of the fan which communicates with the space between the hood and the drum-sections by means of ducts l-l formed in frame 10. The outlet trunk 36' of the through a clutch 51.

with a gear-52 on the spindle 14 of the fan-casing will be connected in any suitable manner to a. receiver, as well Iinderstood in the art. I

Mechanism is providedfor propelling the machine by power derived from motor 11. This mechanism comprises a gear 45 meshing with gear. 42 and secured to a shaft -16 which has its frontend journaled in a bearing 47 in bracket 23 and its rear end journaled inimembers 48 which are secured to and extend between the wheel-brackets 15. A universal joint 49 is included in shaft 46 to permit the rear portion of the shaft to move relatively to frame 10. A worm wheel 50 is mounted on shaft 46 between members 48 and is adapted to be driven by said shaft The worm meshes carryingwheels l2.

tions of the surfacing-drum and is adapted to lift the front of the machine, including the-drum, off the floor, when desired. This roller is secured to a. standard 53, which is slidably mounted in lugs 54. on a bracket 55, which is secured to bracket 23. A cushionspring 56 is interposed between one of the lugs 54' and a collar 57 on the shaft. This roller is adaptedto be lowered by a handle 58, which is connected to conjointly control clutch 51 and to operate roller 52 so that when the roller is operated to lift the snrfacing-drum off the floor, the clutch will be shifted to disconnect the clutch for drivin'g the traction-wheels 12. Handle 58 is secured to a rod 59 which carries a clutch shifting fork (30 and has its front end connected to a bell-crank (31, which is connected by a link 62 to a collar (53 secured on standard 53. WVhen handle 58 is operated forwardly from the position shown in" Fig. 5, it will disconnect clutch 60 to render; the driving-mechanism for the wheels 12 inoperative to drive said-wheels and'will operate the connection for lowering standard 53 sufficiently to lift the drum off the floor and cause the front portion of the machine to be sustained by roller 52'. A tooth 59 is adapted to lock rod 59 in p osition to hold roller 52 raised. Each drum-section is provided with a slot 7 0 adapted to receive the ends of the surfacing strip 28-and a wedge-bar 71,- which is adapted to secure the ends of the strip .in said slot. The wedge-bar 71 is pivotally connected to av lever 73 which is pivoted as at 74, to the'drnm. A spring 75 is applied to hold lever 73 in position to cause the wedge-bar to secure the ends of the surfacing stop 28 in slot and an eccentric 76 which is pivoted in the side of the drummember 1s adapted to engage the outer end of lever 73 to release the wedge-bar. A handle 77 1s secured to the shaft of cccentrio 7 6 and is disposed in a recess 7 8 in the The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from thespirit and scope of the invention.

Having thus described the invention, what claim as new and desire to secure by Let- -=ters Patent, is: A roller 52 is provided between the sec:

1 1. In a floor surfacing machine, the combination of awvheeled frame, a surfacing drum connected to the frame and mounted to revolve on a substantially horizontal 1, axis, a horizontally disposed fan on the frame, a motor'on the frame, a vertically extending fan shaft driven by said motor and gearing for driving the drum from the fan shaft.

2, In a floor surfacing machine, the com- ."bination of a wheeled frame, a surfacing drum connected to the frame and comprising two members, a horizontally extending shaft extending through both of the drum members, a motor on the frame, a horizontally disposed fan on the frame, a. vertically extending fan shaft driven by the motor and extended downwardly between the drum members ,and gearing between the vertical fan shaft and the horizontal drum shaft.

In a floor surfacing machine, the combination of a wheeled frame, a surfacing drmn connected to the frame, mounted 4o rotate on a substantially horizontal axis and comprising a. pair of members, a motor on the frame, a horizontally disposed fan on the frame comprising a casing, a. vertically extending fan-shaft driven by the motor, a horizontal shaft for both of said drum members, and gearing between the fan shaft andthe-drnm shaft, said fan casing being provided with integral extensions forming a collector hood around the drum members.

4. In a floor surfacing machine, the combination of a wheeled frame, a surfacing drum connected to the frame, mounted to rotat on a substantially horizontal axis and comprising a pair of members, a motor on the frame, a, horizontally disposed fan on the frame comprising a casing, a vertically extending fan shaft driven by the motor, a horizontal shaft for both of said drmn members, and gearing between the fan. shaft and the drum shaft, said fan cas- 1ng being provided with an integral exten- Sion between the drum members, having bearings for the drum shaft.

In a floor surfacing machine, the combination of a Wheeled frame, a Surfacing 5 drum mounted to rotate on a substantially horizontal axis and comprising, members spaced apart, a motor on the frame, a fan mounted on the frame, driying-mechanism for the drum extending between the drum members, and a collector hood around said members and leading to the fan, the outer ends of the drum and the hood being substantially conterminous so that, the drum ends will be free to work close to a Wall.

(3. In a floor surfacing, machine, the com- 30 tween said members, and driving mecha- *nism for the drum comprising a vertical shaft mounted in said bracket, said members being hollow, said bracket being extended laterally into the hollow members and provided with bearings for the drum shaft disposed Within the members respectively.

7. In a floor-surfacing machine, the combination of a frame, carrying-Wheels, cushioning means between the frame and the carrying-Wheels, a surfacing drum a shaft for the drum, supported in fixed relation to the frame, a motor on the frame,

mechanism for driving the drum from the motor, mechanism for driving the carrying- Wheels from the drum-driving means, a clutch for controlling the mechanism for driving the carrying-Wheels, a roller for lifting the drum off the floor, and means for conjointly controlling the clutch and the roller.

JAMES HAMPTON. Witnesses:

MILDRED .STUMPF, KATHARINE GERLACH. 

